If we have committed a Type II error, we have
A) used the wrong alpha level.
B) claimed a treatment to be effective when it wasn't.
C) failed to recognize a treatment that was effective.
D) rejected a null hypothesis that was actually true.

Question

Quizplus · Accepted Answer

A Type II error occurs when the null hypothesis is not rejected when it is false, meaning the effectiveness of a treatment is overlooked or not recognized.

If We Have Committed a Type II Error, We Have